ITO is the transparent conductive electrode as Indumn-tin oxide, which has excellent transmission characteristic and reflective characteristic.
Because it has low electric resistance, it is used for flat display. But because it is expensive, it is weak against external impact and stress, it has low mechanical stability when its film is bent, and it has too excessive electric characteristic change by thermal-deformation with substrate.
 
 
Property Unit Standard Specification Method of Measurement
Optical Total Transmittance % Over 87 Over 90 ASTM D 1003
Haze % 5 1 3
Physical Sheet Resistance /sq 400 80 200 4 Point probe
Uniformity % 10 4
Linearity % Below 1.5 1.0
Reliability Hardness H Over 3 Over 7 ASTM D 3363
Thermal shock R/R 1.2 1.2 20cycles -40 and 80
High temperature 1.2 240 hour at 80
Temperature & humidity 1.2 240 hour at 60 & 90%